Computer Networking
Which WAN encapsulations can be configured on an asynchronous serial connection?1. PPP2. ATM3. HDLC4. SDLC5. Frame Relay

3, 4 and 5
All of these
2 and 4
1 and 2

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Computer Networking
Carrier is

One or more conductors that serve as a common connection for a related group of devices
None of these
a collection of interconnected functional units that provides a data communications service among stations attached to the network
a continuous frequency capable of being modulated or impressed with a second signal
the condition when two or more sections attempt to use the same channel at the same time

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